Safety-lock



M. SZYMKIEWICZ.

SAFETY LOCK.

APPLICATION FILED DEC. I, 1920.

1,383,443, Patented July 5,1921.

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M. szYMKlEwlcz.

' -sArm LocK.

' APPLICATION FILED DE01, 1920.

M. SZYMKIEWICZ.

SAFETY LOCK. APPLICATION'HLED Dic. 1, 1920.

Patented July 5, 1921.

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4Patented July 5, 1921..

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Arron/15x UNITED STATES PATENT OFFICE.

rvMIACIIJT-SZYIMKIEWIGZ OF JERSEY CITY, NEW ERSEY.

SAFETY-Loox.

To all 'whom t may concern Beit known that L'MACLEJ 'SzYMxIEwroz, a citizen of the United States, residing at Jersey City, in thencounty of Hudson and State of New Jersey, have invented certain new andV useful Improvements in Safety- Locks, of which the following is a specification.

The main' object of this invention is to provide a safe lock which will not only makerdi'icult the opening thereof but will also sound an alarm whenever-the safe is opened, whetherby vonewho is authorized to do so or whether by 'jan unauthorized person. Y i v The above and other vobjects will become apparent in the description below, iny which like characters of referencerefer to likenamed parts in the drawings;`

vReferring briefly to the drawings, Figure 1 is an enlarged view ofthe inner side of the safe door,showing` thelock mechanism.

Fig. 2 isaside elevational view thereof.

Fig. 3 is alview similar to Fig. 1 with the respective parts vin another position.

Fig. 4 is a view taken on the line 4-4 of Fi 3.

F ig. 5 is a perspective view of one of the wheels of said mechanism. I

Fig. 6 is an enlarged perspectlve view of one of the safety features of said mechanism.

Fig. 7 is an enlarged side elevational view of the door shown in Fig.. 1 with the respective parts in another position.

Fig. 8 is a view of the inner vside of the inner safe door.

Fig. 9 is a lower end elevational view of the same. E

Fig. 10 is a perspective view of the complete safe.

Referring now in detail to the drawlngs. the numeral l represents the outer door of the safe, and 2 a pair of horizontal bolts slidably mounted in guides 3 and united by a bridging member 9. Lugs 4 project from the member 9 as shown and are provided with extended pins 5 at the ends. Wheels 6 are rotatably mounted upon shafts 7 in the door 1, and each wheel is provided with a radially extending slotted lug 8.

The member 9 is provided lwith a relatively wide extension 10 near the middle thereof, a slot 11 being cut in said extension. A plate 12 having one side extending at right angles to the door, at 12a, is attached Specication of Letters Patent.

Application*mednecenber 1, 1920. semina-127,463. l

rto said extension 10, said side having a recess 13 therein through which projects a stem 17 rigid upon a shaft 16 rotatably mounted in the door 1. Adjacent the plate 12a second plate 14 is attached, having .one

side 15 extending out at right angles to said door. v

Nearthe edge of the door 1 is mounted a plate 19 parallel with the member 9, having a circular recess near its upper end through which projects a lug 3 7 rigidV therewith. IA slot 38 in said plate 19 communicates with.v said circular recess, and is of a length substantially equal to that of the lug 37. The pin 18 projects beyond the'plate 19, and a link 22 is pivotally attached to the end of'said pin, said link being also pivotally supported at about itsrc'enter at 23. Another link 26 passes through a slotvprovided therefor in the plate 19, said link 26 being pivoted tothe end of thevlink 22, at 24. Still another link 27 is l pivotally attached at about its center at 28,

one end being pivoted to the link 26. A projection. 29 extends at right angles to the link'27 and passes through a slot provided therefor in the plate 19, terminatin in a cap or boss 30. A common type of e ectric push button 31 is supported rigidly beneath said cap, and wires 32 lead therefrom in the usual manner to an electric source and an electric alarm, not shown. A coiled spring 21 surrounds the pin 18 between theplate 19 and the link 22, and a similar spring 20 surrounds said pin between thek door 1 and the plate 19. Said springs normally urge the lug 37 away from the door 1. A button 33 is secured to the stem 18 on the outer side of the door 1, and a button 34 is similarly secured to the shaft 16. Likewise buttons 35 and 36 are secured to the shafts 7. About each of the handles 35 and 36 a graduated circle is described, as shown, on the door 1, so that the positions of the movable parts of the lock mechanism may be identified by the position of a point on the handle relative to said circle. This point on the handle, not shown, indicator.

Normally, when the door is locked, the bolts 2 cannot be withdrawn in order to release the door, for they are held by the wheels 6 contacting with the pins 5. Therefore, the first step in opening the door is the turning of the wheels 6 until the slotted lugs 8 will come into alinement with the pins pin 18 having an extending may be an arrow or other well-known 5, as shown in Fig. 3. Therefore the bolts 2 may be withdrawn so far as the obstruction of the pins 5 isv concerned. 'Howeverg suchwithdrawal is still prevented, for the raised A side of the plate 14 cannot move toward Y theV left Vbecause of the obstruction of the" VLplate` which is, rigid withV the link 22, asY` is apparent in Fig. 1. Therefore,'the nextv .step in the .opening consists in tairning the button 33 until thelug 37 attains 'a positionV just V,over .the slot 38, and then said button -is pulled outward from said door, thereby drawing said lug through said plate 1 9to the other side; ofsaid plate, asV seen in Fig. 2.

Tghisjoperation causes, as is. readily apparent, the cap to press against the button 31,

soundingl the Velectric Y alarm Y Likewisethis operation causesfthe platef 25 to belifted by the link 22 so that it will allow movementto theleft of the. plate ,14.l At Y this 4stage :the button' 34 is turned in a Y counter`gclockwise direction, causing the bolts2topbe withdrawn byivirtue of thecontaet of the stem 17 with.V

thesj Vlotted .extension 13 offtheplate 12. Thenthe door 1YV may be swung open.

-Additional safety means are provided'ontheinner-door 40. of. the safe. -Bolts41are united by aY vbridging member 41?, `in, rthe came manner as the bolts 2. A single wheel 42'is rotatably mounted in the door'540, a

slot..43 beingprovided in theV periphery ofV said wheel.:4 A pinV 44 rigidfwi'th anv'exten:

sion48 is adapted to Valine with said slot to` allow movement to .the-left ofthe member 41a and henceofr thepbolts 4l.V A `shaft54'5v ig feaabiy Vmtufaai inthe '010355V 4o and has rigid therewith a stem 46 engaging the raised Yside-51 of aY plate 52.A attached to said Inern- Vber by means of a recess in said side. .A hori-V' zontal slot 49 in the member 41a'allows vmoyement to the left of the, said member pastthe Q shaft 45. Vi/.'buttonO on the outside. oftheV door 40. provides means for turning Vthe shaftV upon' which the wheel 42 is mounted, Vand a similar button 54 is` attached to the shaft 145.

i Theoperatonvof thisdoor thesameasde- I. Y Y

VIn a devicefof aldoor,

bolts slidably monnte'd on sai-d. door, wheels rotatably mounted adjacent'said'bolts, slotted radial projections on said wheels, ajmem'f ber zconnecting said boltsflugs projecting from said me`mber,'pins on'tleendso said lugs lying. `within `the Vperiph'eries, of said wheels,';sai :lVV pins beingv adapted to Vregister Y with V said slotted lugs, lan extension on said with said" projection throughrsaid recess,

second projectionon said extension, means I p normallyv lying; in; the path v of said' Ysecond plate, and Ymeans for removing'saidrst- Y named meansl from'the said rpath. 'j i ,In witness whereof I'Vafvx my signature. Y 

